Included limits.conf configuration

slapos/package/promise/limitconf.py

+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+# Copyright (c) 2012-2014 Vifib SARL and Contributors.
+# All Rights Reserved.
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsibility of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# guarantees and support are strongly advised to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 3
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
+from slapos.package.base_promise import BasePromise
+import os
+import pkg_resources
+
+
+class Promise(BasePromise):
+
+  configuration_file_path = '/etc/security/limits.conf' 
+
+  def _getLimitConfTemplate(self):
+    return pkg_resources.resource_stream(__name__,
+                         'template/limits.conf.in').read()
+
+  def checkConsistency(self, fixit=0, **kw):
+    is_ok = False
+
+    if os.path.exists(self.configuration_file_path):
+       expected_limit = self._getLimitConfTemplate()
+       with open(self.configuration_file_path, 'r') as limit_conf:
+         is_ok = expected_limit == limit_conf.read()
+
+    if not is_ok and fixit:
+      return self.fixConsistency(**kw)
+
+    return is_ok
+
+  def fixConsistency(self, **kw):
+    """Configures hostname daemon"""
+
+    self.log("Update limits : %s" % self.configuration_file_path)
+    if os.path.exists(self.configuration_file_path):
+      shutil.copy(self.configuration_file_path, 
+        "%s.%s" % (self.configuration_file_path, time.time()))
+    
+    with open(self.configuration_file_path, 'w') as limit_conf:
+      limit_conf.write(self._getLimitConfTemplate())
+
+    return self.checkConsistency(fixit=0, **kw)
+